The difference in temperature between day and night affects the strawberry soluble sugar content by influencing the photosynthesis, respiration and sucrose phosphatase synthase

Plenty of studies have demonstrated that DIF has an effect on the fruit growth. To study effects day and night temperature differences strawberry sugar quality, experiment using climate chambers was conducted. Five different between temperatures (DIF) were set, which 6 °C (28 °C/22 °C, day/night temperature), 8 (29 °C/21 °C), 10 (30 °C/20 12 (31 °C/19 14 (32 °C/18 °C). The results showed following indices peaked with a including photosynthesis rate, glucose content, fructose sucrose soluble content metabolic enzyme activity. respiration rate increased during decreased at night. root dry weight stolon leaf °C; however, reached maximum values °C. Grey correlation analysis most important factor in our affecting phosphate synthase; for sucrose, glucose, sugars, photosynthesis. We found temperature) suitable growth, especially accumulation.